Question # 1

The rise of liquid in the thermomeer is due to.

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Evaporation

Contraction

Expansion

Sublimation

Chemical bond is O2 is.

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Ionic

Covalent

Metalic

None of these

Wave are of .............. types.

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Two

Three

Four

Five

The lowest pointof a wave is................

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Crest

Amplitude

Peak

Trough

A solution is named after the name of

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Solvent

Solute

Mixture

None of these

The structure in plants used to produce food for plant is.

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Stem

Root

Branch

Leaf

Entry and growth of pathogen into our body is called.

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Pathogen

Infection

Immunity

None of these

Conservation of water means.

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A using water

Save water

Avoiding water

Wasting water

How many atoms orm one molecuel of chlorine.

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1

2

3

4

Sound waves are not.

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Compressional waves

Transverse waves

Mechnical waves

Low frequency waves

An element with fifteen protons in its atomic nucleus has atomic numebr.

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5

10

15

20

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